Open gardens

Gardens across Sussex will open to visitors this summer. Find an open garden near you.

Event details

This summer we will be holding our very first open gardens programme! Gardens across Sussex will open their gates to visitors in exchange for donations to support Chestnut Tree House and our sister hospices Martlets and St Barnabas House.

Dates between June and October, see all listings below.

When: Monday 1st June 2026
End: Thursday 1st October 2026
Activity type: Community events, Open day, South East
flowers in the chestnut tree house garden

Could you open your garden?

Are you a budding botanist, green-fingered gardener or proud of your pond? Opening your garden to visitors is a great way to support your local children's hospice, while meeting new people and spending quality time in the fresh air.

Get in touch with our community fundraising team if you're interested in taking part - we'd love to hear from you!

Get in touch!
Potted plants and a stove at pinks garden, taking part in our open gardens event

Sunday 7 June

Pinks Cottage

Location: Pinks Cottage, 105 East Street, Selsey, West Sussex PO20 0DA
Opening times: 10:30am to 4pm
Other: Refreshments including homemade cakes, chutneys and delicious breads. Live music from a saxophone quartet.
Admission cost: £5 donation, with homemade sausage roll and glass of Pimms included.

About this open garden:
Sarah Jouault is opening her garden as part of the Selsey Open Gardens. Enjoy the beauty of Sarah’s garden while savouring homemade cake and listening to a local saxophone quartet. It promises to be a wonderful day out.

Supporting Chestnut Tree House.

A pond and plants at old mill house, taking part in our open gardens event

Saturday 13 June

Old Mill House

Location: Old Mill House, Sandy Lane, Henfield, West Sussex, BN5 9UX
Opening times: 11am - 5pm
Other: Light refreshments, music, art on display
Admission cost: Donations welcome

About this open garden:
Lesley Besson is opening Old Mill House as part of the Henfield Open Gardens and Arts Festival. A stunning garden surrounding the 17th century miller’s cottage. Discover the wildlife-friendly pond, mature shrubs, and the intriguing history of the sunken garden, all in a woodland setting.

An expert beekeeper will demonstrate a live bee colony in a secure hive, so the bees cannot escape! Visitors can also enjoy performances by the Pyecombe Village Choir 11.30 am - 12 and local folk singer Steve Bailey from 2 – 4 pm, view work by two local artists, and relax with homemade cakes and tea served by our amazing St Barnabas supporters.

Supporting St Barnabas House hospice.

Flowers and plants in the garden of lodge cottage, taking part in our open gardens event

Saturday 13 June

Lodge Cottage

Location: Lodge Cottage, Martyn Close, Henfield, West Sussex BN5 9QH
Opening times: 10am to 5pm
Other: Refreshments and Plant Sale:
Admission cost: Donations welcomed

About this open garden:
Penny Thomas is opening her garden as part of the Henfield Open Gardens and Arts Festival. Penny’s garden is a small secret walled garden that has a random mix of cottage garden, tropical and self-seeding plants.  A haven for slow worms, toads, the occasional hedgehog & foxes.

Supporting St Barnabas House hospice.

A brick pond and colourful flowers in the garden of rosemount cottage, taking part in our open gardens event

Saturday 13 June

Rosemount Cottage

Opening times: 10am to 5pm
Other: Plant sale, live music, art display and local produce
Admission cost: Donations welcomed

About this open garden:
Elizabeth Taylor is opening her beautiful, colourful cottage garden as part of the Henfield Open Gardens and Arts Festival, filled with a variety of plants and flowers to delight visitors and wildlife alike. Visitors can also enjoy a musical performance by John De Little, an art display by local animal portrait artist Christine Twitchen, and delicious produce from Good Sussex Honey.

Supporting St Barnabas House hospice.

a pretty cottage garden full of mature plants and trees, with cafe style table and chairs in foreground

Sunday 21 June

Judy's cottage

Location: Judy’s Cottage, 33 The Plantation, Worthing, West Sussex, BN13 2AE
Opening times: 10am till 3.30pm
Other: No refreshments but plant sale
Admission cost Suggested donation of £5

About this open garden:
Judy Gordon has a charming, medium-sized cottage garden offering year-round interest. Mature trees create a sense of privacy, while the space has been thoughtfully designed and cared for by its owners, whose passion is clear throughout.

Informal beds are filled with a mix of shrubs, perennials, traditional cottage plants, and spring bulbs, creating a relaxed and colourful display. Hidden corners invite exploration, alongside a small fish pond and additional water features.

A delightful log cabin sits slightly elevated, perfectly positioned to take in views across the garden.

Supporting St Barnabas House hospice.

A flower bed with shrubs and flowers in the garden at the ridgeway, taking part in our open gardens event

Sunday 19 July

91 The Ridgeway

Location: 91 The Ridgeway, Woodingdean, BN2 6PB
Opening times: 11am to 5pm
Other: Plant sale, raffle, homemade cakes, unsuitable for wheelchairs
Admission cost: Donations welcomed

About this open garden:
Gill Maskell has been opening her garden since 2007 and welcomes visitors from 11am to 5pm. This well-established garden features a wide variety of trees and shrubs, a beautiful pond, and winding paths that guide you around the grounds.  Please note that, unfortunately, the paths are not suitable for wheelchairs.

Visitors can enjoy homemade cakes and cream teas in the garden or take some treats home. There will also be a plant sale and raffle.

Supporting Martlets hospice.

Benches, potted plants and bushes in the hearts and flowers garden, taking part in our open gardens event

Saturday 25 July

Hearts and Flowers

Location: Stanmer Park, Lewes Road, Stanmer, Brighton BN1 9PZ. What3Words: bikes.influencing.relax
Opening times: 11am to 5pm
Other: Cut flowers, tours of garden, some plants for sale
Admission cost: Donations welcomed

About this open garden:
Rona Couper has run Hearts and Flowers since 2018 when she set it up with her friend.  The social enterprise has been taking forward activities focused on promoting local growing as an alternative to the unsustainable commercial cut flower industry.  

Hearts and Flowers is based at a one-acre site at Stanmer Organics in the South Downs National Park. They provide a welcoming space for local people with barriers to nature to take part in sessions designed to boost mental and physical health.  There are lots of trees and wild birds and a wide variety of perennial and annual flowers suitable for cutting as well as a wildflower meadow.

Supporting Martlets hospice.

A pathway surrounded either side by mature shrubs and colourful flowers at highdown garden, taking part in our open gardens event

Thursday 30 July

Highdown Gardens

Location: Highdown Gardens, 33 Highdown Rise, (off Littlehampton Road), Worthing, West Sussex, BN12 6FB
Opening times: 10am to 4.30pm
Other: Awareness stand, visitor centre, picnics permitted
Admission cost: Suggested donation £5

About this open garden:
Created in the early 20th century by Sir Frederick Stern, the garden is renowned for transforming an inhospitable chalk quarry into a thriving and diverse landscape.

Highdown Gardens is a unique and tranquil chalk garden set on the edge of the South Downs above Worthing, with sweeping views towards the sea. It is home to a remarkable National Plant Collection, including rare trees and shrubs grown from seed collected on historic plant-hunting expeditions to China and the Himalayas.

Despite its horticultural significance, the garden retains an intimate and peaceful atmosphere, with hidden corners, rockeries and quiet seating areas inviting exploration and reflection.

Today, Highdown Gardens remains a beautifully maintained and accessible space, combining botanical richness with a sense of calm and seclusion, making it one of the area’s most distinctive and rewarding gardens to visit.

Supporting St Barnabas House hospice.